title: [Logistic regression analysis of contrast-enhanced ultrasound and ultrasonic elastography in differential diagnosis of thyroid nodules].
abstract: OBJECTIVE
  To evaluate the contrast-enhanced ultrasound(CEUS) and ultrasonic elastography (UE) in diagnosis of thyroid nodules by a binary Logistic regression model.
  
  
  METHODS
  A total 149 cases with thyroid nodules were examed by CEUS and UE and were confirmed by surgical pathology. A Logistic model was obtained on the basis of ultrasonographic features. Receiver operator characteris(ROC) curve was constructed to assess the performance of the Logistic model.
  
  
  RESULTS
  Four ultrasonographic features including calcification, enhancement degree, biggest perfusion strength and elastic score were finally entered into the Logistic model. The percentage of correct prediction was 91.90%.
  
  
  CONCLUSIONS
  Both CEUS and UE have high value in differential diagnosis of thyroid nodules and the Logistic regression model has high diagnostic rate.
authors.affiliation: Department of Medical Ultrasound, Second Affiliated Hospital, School of Medicine, Xi'an Jiaotong University, Xi'an 710004, China.
authors.forename: Yong-bo
authors.initials: YB
authors.lastname: Xu
authors.forename: Hua
authors.initials: H
authors.lastname: Wang
authors.forename: Qi
authors.initials: Q
authors.lastname: Zhou
authors.forename: Jue
authors.initials: J
authors.lastname: Jiang
authors.forename: Wen-qi
authors.initials: WQ
authors.lastname: Ma
authors.forename: Xiao-ying
authors.initials: XY
authors.lastname: Lei
mesh_terms: D002114:Calcinosis; D003287:Contrast Media; D003937:Diagnosis, Differential; D054459:Elasticity Imaging Techniques; D006801:Humans; D016015:Logistic Models; D012372:ROC Curve; D016606:Thyroid Nodule / Q000175:diagnosis / Q000000981:diagnostic imaging*; D014465:Ultrasonics
chemical_list: D003287:Contrast Media